Commit | Line | Data |
---|---|---|
b73d1230 ID |
1 | /* exynos_drm_vidi.c |
2 | * | |
3 | * Copyright (C) 2012 Samsung Electronics Co.Ltd | |
4 | * Authors: | |
5 | * Inki Dae <inki.dae@samsung.com> | |
6 | * | |
7 | * This program is free software; you can redistribute it and/or modify it | |
8 | * under the terms of the GNU General Public License as published by the | |
9 | * Free Software Foundation; either version 2 of the License, or (at your | |
10 | * option) any later version. | |
11 | * | |
12 | */ | |
760285e7 | 13 | #include <drm/drmP.h> |
b73d1230 ID |
14 | |
15 | #include <linux/kernel.h> | |
b73d1230 | 16 | #include <linux/platform_device.h> |
1d50aa9c | 17 | #include <linux/component.h> |
b73d1230 ID |
18 | |
19 | #include <drm/exynos_drm.h> | |
20 | ||
760285e7 DH |
21 | #include <drm/drm_edid.h> |
22 | #include <drm/drm_crtc_helper.h> | |
b73d1230 ID |
23 | |
24 | #include "exynos_drm_drv.h" | |
25 | #include "exynos_drm_crtc.h" | |
26 | #include "exynos_drm_encoder.h" | |
e30655d0 | 27 | #include "exynos_drm_vidi.h" |
b73d1230 ID |
28 | |
29 | /* vidi has totally three virtual windows. */ | |
30 | #define WINDOWS_NR 3 | |
31 | ||
ce6cb556 SP |
32 | #define ctx_from_connector(c) container_of(c, struct vidi_context, \ |
33 | connector) | |
b73d1230 ID |
34 | |
35 | struct vidi_win_data { | |
36 | unsigned int offset_x; | |
37 | unsigned int offset_y; | |
38 | unsigned int ovl_width; | |
39 | unsigned int ovl_height; | |
40 | unsigned int fb_width; | |
41 | unsigned int fb_height; | |
42 | unsigned int bpp; | |
43 | dma_addr_t dma_addr; | |
b73d1230 ID |
44 | unsigned int buf_offsize; |
45 | unsigned int line_size; /* bytes */ | |
46 | bool enabled; | |
47 | }; | |
48 | ||
49 | struct vidi_context { | |
f01833cd | 50 | struct exynos_drm_manager manager; |
7340426a | 51 | struct exynos_drm_display display; |
1d50aa9c | 52 | struct platform_device *pdev; |
080be03d | 53 | struct drm_device *drm_dev; |
b73d1230 | 54 | struct drm_crtc *crtc; |
ce6cb556 SP |
55 | struct drm_encoder *encoder; |
56 | struct drm_connector connector; | |
b73d1230 ID |
57 | struct vidi_win_data win_data[WINDOWS_NR]; |
58 | struct edid *raw_edid; | |
59 | unsigned int clkdiv; | |
60 | unsigned int default_win; | |
61 | unsigned long irq_flags; | |
62 | unsigned int connected; | |
63 | bool vblank_on; | |
64 | bool suspended; | |
291257cf | 65 | bool direct_vblank; |
b73d1230 ID |
66 | struct work_struct work; |
67 | struct mutex lock; | |
080be03d | 68 | int pipe; |
b73d1230 ID |
69 | }; |
70 | ||
e1819aad AH |
71 | static inline struct vidi_context *manager_to_vidi(struct exynos_drm_manager *m) |
72 | { | |
73 | return container_of(m, struct vidi_context, manager); | |
74 | } | |
75 | ||
2f26bd72 AH |
76 | static inline struct vidi_context *display_to_vidi(struct exynos_drm_display *d) |
77 | { | |
78 | return container_of(d, struct vidi_context, display); | |
79 | } | |
80 | ||
b73d1230 ID |
81 | static const char fake_edid_info[] = { |
82 | 0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00, 0x4c, 0x2d, 0x05, 0x05, | |
83 | 0x00, 0x00, 0x00, 0x00, 0x30, 0x12, 0x01, 0x03, 0x80, 0x10, 0x09, 0x78, | |
84 | 0x0a, 0xee, 0x91, 0xa3, 0x54, 0x4c, 0x99, 0x26, 0x0f, 0x50, 0x54, 0xbd, | |
85 | 0xee, 0x00, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, | |
86 | 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x66, 0x21, 0x50, 0xb0, 0x51, 0x00, | |
87 | 0x1b, 0x30, 0x40, 0x70, 0x36, 0x00, 0xa0, 0x5a, 0x00, 0x00, 0x00, 0x1e, | |
88 | 0x01, 0x1d, 0x00, 0x72, 0x51, 0xd0, 0x1e, 0x20, 0x6e, 0x28, 0x55, 0x00, | |
89 | 0xa0, 0x5a, 0x00, 0x00, 0x00, 0x1e, 0x00, 0x00, 0x00, 0xfd, 0x00, 0x18, | |
90 | 0x4b, 0x1a, 0x44, 0x17, 0x00, 0x0a, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, | |
91 | 0x00, 0x00, 0x00, 0xfc, 0x00, 0x53, 0x41, 0x4d, 0x53, 0x55, 0x4e, 0x47, | |
92 | 0x0a, 0x20, 0x20, 0x20, 0x20, 0x20, 0x01, 0xbc, 0x02, 0x03, 0x1e, 0xf1, | |
93 | 0x46, 0x84, 0x05, 0x03, 0x10, 0x20, 0x22, 0x23, 0x09, 0x07, 0x07, 0x83, | |
94 | 0x01, 0x00, 0x00, 0xe2, 0x00, 0x0f, 0x67, 0x03, 0x0c, 0x00, 0x10, 0x00, | |
95 | 0xb8, 0x2d, 0x01, 0x1d, 0x80, 0x18, 0x71, 0x1c, 0x16, 0x20, 0x58, 0x2c, | |
96 | 0x25, 0x00, 0xa0, 0x5a, 0x00, 0x00, 0x00, 0x9e, 0x8c, 0x0a, 0xd0, 0x8a, | |
97 | 0x20, 0xe0, 0x2d, 0x10, 0x10, 0x3e, 0x96, 0x00, 0xa0, 0x5a, 0x00, 0x00, | |
98 | 0x00, 0x18, 0x02, 0x3a, 0x80, 0x18, 0x71, 0x38, 0x2d, 0x40, 0x58, 0x2c, | |
99 | 0x45, 0x00, 0xa0, 0x5a, 0x00, 0x00, 0x00, 0x1e, 0x00, 0x00, 0x00, 0x00, | |
100 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | |
101 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | |
102 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | |
103 | 0x00, 0x00, 0x00, 0x06 | |
104 | }; | |
105 | ||
bb7704d6 | 106 | static void vidi_apply(struct exynos_drm_manager *mgr) |
b73d1230 | 107 | { |
e1819aad | 108 | struct vidi_context *ctx = manager_to_vidi(mgr); |
b73d1230 | 109 | struct exynos_drm_manager_ops *mgr_ops = mgr->ops; |
b73d1230 ID |
110 | struct vidi_win_data *win_data; |
111 | int i; | |
112 | ||
b73d1230 ID |
113 | for (i = 0; i < WINDOWS_NR; i++) { |
114 | win_data = &ctx->win_data[i]; | |
1c6244c3 | 115 | if (win_data->enabled && (mgr_ops && mgr_ops->win_commit)) |
bb7704d6 | 116 | mgr_ops->win_commit(mgr, i); |
b73d1230 | 117 | } |
b73d1230 ID |
118 | } |
119 | ||
bb7704d6 | 120 | static int vidi_enable_vblank(struct exynos_drm_manager *mgr) |
b73d1230 | 121 | { |
e1819aad | 122 | struct vidi_context *ctx = manager_to_vidi(mgr); |
b73d1230 | 123 | |
b73d1230 ID |
124 | if (ctx->suspended) |
125 | return -EPERM; | |
126 | ||
127 | if (!test_and_set_bit(0, &ctx->irq_flags)) | |
128 | ctx->vblank_on = true; | |
129 | ||
291257cf ID |
130 | ctx->direct_vblank = true; |
131 | ||
132 | /* | |
133 | * in case of page flip request, vidi_finish_pageflip function | |
134 | * will not be called because direct_vblank is true and then | |
1c6244c3 | 135 | * that function will be called by manager_ops->win_commit callback |
291257cf ID |
136 | */ |
137 | schedule_work(&ctx->work); | |
138 | ||
b73d1230 ID |
139 | return 0; |
140 | } | |
141 | ||
bb7704d6 | 142 | static void vidi_disable_vblank(struct exynos_drm_manager *mgr) |
b73d1230 | 143 | { |
e1819aad | 144 | struct vidi_context *ctx = manager_to_vidi(mgr); |
b73d1230 | 145 | |
b73d1230 ID |
146 | if (ctx->suspended) |
147 | return; | |
148 | ||
149 | if (test_and_clear_bit(0, &ctx->irq_flags)) | |
150 | ctx->vblank_on = false; | |
151 | } | |
152 | ||
bb7704d6 | 153 | static void vidi_win_mode_set(struct exynos_drm_manager *mgr, |
8837deea | 154 | struct exynos_drm_plane *plane) |
b73d1230 | 155 | { |
e1819aad | 156 | struct vidi_context *ctx = manager_to_vidi(mgr); |
b73d1230 ID |
157 | struct vidi_win_data *win_data; |
158 | int win; | |
159 | unsigned long offset; | |
160 | ||
8837deea GP |
161 | if (!plane) { |
162 | DRM_ERROR("plane is NULL\n"); | |
b73d1230 ID |
163 | return; |
164 | } | |
165 | ||
8837deea | 166 | win = plane->zpos; |
b73d1230 ID |
167 | if (win == DEFAULT_ZPOS) |
168 | win = ctx->default_win; | |
169 | ||
a7f98d6a | 170 | if (win < 0 || win >= WINDOWS_NR) |
b73d1230 ID |
171 | return; |
172 | ||
8837deea GP |
173 | offset = plane->fb_x * (plane->bpp >> 3); |
174 | offset += plane->fb_y * plane->pitch; | |
b73d1230 | 175 | |
8837deea | 176 | DRM_DEBUG_KMS("offset = 0x%lx, pitch = %x\n", offset, plane->pitch); |
b73d1230 ID |
177 | |
178 | win_data = &ctx->win_data[win]; | |
179 | ||
8837deea GP |
180 | win_data->offset_x = plane->crtc_x; |
181 | win_data->offset_y = plane->crtc_y; | |
182 | win_data->ovl_width = plane->crtc_width; | |
183 | win_data->ovl_height = plane->crtc_height; | |
184 | win_data->fb_width = plane->fb_width; | |
185 | win_data->fb_height = plane->fb_height; | |
186 | win_data->dma_addr = plane->dma_addr[0] + offset; | |
187 | win_data->bpp = plane->bpp; | |
188 | win_data->buf_offsize = (plane->fb_width - plane->crtc_width) * | |
189 | (plane->bpp >> 3); | |
190 | win_data->line_size = plane->crtc_width * (plane->bpp >> 3); | |
b73d1230 ID |
191 | |
192 | /* | |
193 | * some parts of win_data should be transferred to user side | |
194 | * through specific ioctl. | |
195 | */ | |
196 | ||
197 | DRM_DEBUG_KMS("offset_x = %d, offset_y = %d\n", | |
198 | win_data->offset_x, win_data->offset_y); | |
199 | DRM_DEBUG_KMS("ovl_width = %d, ovl_height = %d\n", | |
200 | win_data->ovl_width, win_data->ovl_height); | |
ddd8e959 | 201 | DRM_DEBUG_KMS("paddr = 0x%lx\n", (unsigned long)win_data->dma_addr); |
b73d1230 | 202 | DRM_DEBUG_KMS("fb_width = %d, crtc_width = %d\n", |
8837deea | 203 | plane->fb_width, plane->crtc_width); |
b73d1230 ID |
204 | } |
205 | ||
bb7704d6 | 206 | static void vidi_win_commit(struct exynos_drm_manager *mgr, int zpos) |
b73d1230 | 207 | { |
e1819aad | 208 | struct vidi_context *ctx = manager_to_vidi(mgr); |
b73d1230 ID |
209 | struct vidi_win_data *win_data; |
210 | int win = zpos; | |
211 | ||
b73d1230 ID |
212 | if (ctx->suspended) |
213 | return; | |
214 | ||
215 | if (win == DEFAULT_ZPOS) | |
216 | win = ctx->default_win; | |
217 | ||
a7f98d6a | 218 | if (win < 0 || win >= WINDOWS_NR) |
b73d1230 ID |
219 | return; |
220 | ||
221 | win_data = &ctx->win_data[win]; | |
222 | ||
223 | win_data->enabled = true; | |
224 | ||
b8eade24 | 225 | DRM_DEBUG_KMS("dma_addr = %pad\n", &win_data->dma_addr); |
b73d1230 ID |
226 | |
227 | if (ctx->vblank_on) | |
228 | schedule_work(&ctx->work); | |
229 | } | |
230 | ||
bb7704d6 | 231 | static void vidi_win_disable(struct exynos_drm_manager *mgr, int zpos) |
b73d1230 | 232 | { |
e1819aad | 233 | struct vidi_context *ctx = manager_to_vidi(mgr); |
b73d1230 ID |
234 | struct vidi_win_data *win_data; |
235 | int win = zpos; | |
236 | ||
b73d1230 ID |
237 | if (win == DEFAULT_ZPOS) |
238 | win = ctx->default_win; | |
239 | ||
a7f98d6a | 240 | if (win < 0 || win >= WINDOWS_NR) |
b73d1230 ID |
241 | return; |
242 | ||
243 | win_data = &ctx->win_data[win]; | |
244 | win_data->enabled = false; | |
245 | ||
246 | /* TODO. */ | |
247 | } | |
248 | ||
af65c804 SP |
249 | static int vidi_power_on(struct exynos_drm_manager *mgr, bool enable) |
250 | { | |
e1819aad | 251 | struct vidi_context *ctx = manager_to_vidi(mgr); |
af65c804 SP |
252 | |
253 | DRM_DEBUG_KMS("%s\n", __FILE__); | |
254 | ||
255 | if (enable != false && enable != true) | |
256 | return -EINVAL; | |
257 | ||
258 | if (enable) { | |
259 | ctx->suspended = false; | |
260 | ||
261 | /* if vblank was enabled status, enable it again. */ | |
262 | if (test_and_clear_bit(0, &ctx->irq_flags)) | |
263 | vidi_enable_vblank(mgr); | |
264 | ||
265 | vidi_apply(mgr); | |
266 | } else { | |
267 | ctx->suspended = true; | |
268 | } | |
269 | ||
270 | return 0; | |
271 | } | |
272 | ||
273 | static void vidi_dpms(struct exynos_drm_manager *mgr, int mode) | |
274 | { | |
e1819aad | 275 | struct vidi_context *ctx = manager_to_vidi(mgr); |
af65c804 SP |
276 | |
277 | DRM_DEBUG_KMS("%d\n", mode); | |
278 | ||
279 | mutex_lock(&ctx->lock); | |
280 | ||
281 | switch (mode) { | |
282 | case DRM_MODE_DPMS_ON: | |
283 | vidi_power_on(mgr, true); | |
284 | break; | |
285 | case DRM_MODE_DPMS_STANDBY: | |
286 | case DRM_MODE_DPMS_SUSPEND: | |
287 | case DRM_MODE_DPMS_OFF: | |
288 | vidi_power_on(mgr, false); | |
289 | break; | |
290 | default: | |
291 | DRM_DEBUG_KMS("unspecified mode %d\n", mode); | |
292 | break; | |
293 | } | |
294 | ||
295 | mutex_unlock(&ctx->lock); | |
296 | } | |
297 | ||
080be03d | 298 | static int vidi_mgr_initialize(struct exynos_drm_manager *mgr, |
f37cd5e8 | 299 | struct drm_device *drm_dev) |
080be03d | 300 | { |
e1819aad | 301 | struct vidi_context *ctx = manager_to_vidi(mgr); |
f37cd5e8 | 302 | struct exynos_drm_private *priv = drm_dev->dev_private; |
080be03d | 303 | |
eb88e422 | 304 | ctx->drm_dev = drm_dev; |
8a326edd | 305 | ctx->pipe = priv->pipe++; |
080be03d | 306 | |
080be03d SP |
307 | return 0; |
308 | } | |
309 | ||
1c6244c3 SP |
310 | static struct exynos_drm_manager_ops vidi_manager_ops = { |
311 | .dpms = vidi_dpms, | |
1c6244c3 SP |
312 | .enable_vblank = vidi_enable_vblank, |
313 | .disable_vblank = vidi_disable_vblank, | |
314 | .win_mode_set = vidi_win_mode_set, | |
315 | .win_commit = vidi_win_commit, | |
316 | .win_disable = vidi_win_disable, | |
b73d1230 ID |
317 | }; |
318 | ||
b73d1230 ID |
319 | static void vidi_fake_vblank_handler(struct work_struct *work) |
320 | { | |
321 | struct vidi_context *ctx = container_of(work, struct vidi_context, | |
322 | work); | |
b73d1230 | 323 | |
080be03d | 324 | if (ctx->pipe < 0) |
b73d1230 ID |
325 | return; |
326 | ||
327 | /* refresh rate is about 50Hz. */ | |
328 | usleep_range(16000, 20000); | |
329 | ||
291257cf ID |
330 | mutex_lock(&ctx->lock); |
331 | ||
332 | if (ctx->direct_vblank) { | |
080be03d | 333 | drm_handle_vblank(ctx->drm_dev, ctx->pipe); |
291257cf ID |
334 | ctx->direct_vblank = false; |
335 | mutex_unlock(&ctx->lock); | |
336 | return; | |
337 | } | |
338 | ||
339 | mutex_unlock(&ctx->lock); | |
340 | ||
080be03d | 341 | exynos_drm_crtc_finish_pageflip(ctx->drm_dev, ctx->pipe); |
b73d1230 ID |
342 | } |
343 | ||
b73d1230 ID |
344 | static int vidi_show_connection(struct device *dev, |
345 | struct device_attribute *attr, char *buf) | |
346 | { | |
f01833cd | 347 | struct vidi_context *ctx = dev_get_drvdata(dev); |
b73d1230 | 348 | int rc; |
b73d1230 ID |
349 | |
350 | mutex_lock(&ctx->lock); | |
351 | ||
352 | rc = sprintf(buf, "%d\n", ctx->connected); | |
353 | ||
354 | mutex_unlock(&ctx->lock); | |
355 | ||
356 | return rc; | |
357 | } | |
358 | ||
359 | static int vidi_store_connection(struct device *dev, | |
360 | struct device_attribute *attr, | |
361 | const char *buf, size_t len) | |
362 | { | |
f01833cd | 363 | struct vidi_context *ctx = dev_get_drvdata(dev); |
b73d1230 ID |
364 | int ret; |
365 | ||
b73d1230 ID |
366 | ret = kstrtoint(buf, 0, &ctx->connected); |
367 | if (ret) | |
368 | return ret; | |
369 | ||
370 | if (ctx->connected > 1) | |
371 | return -EINVAL; | |
372 | ||
d07d39df ID |
373 | /* use fake edid data for test. */ |
374 | if (!ctx->raw_edid) | |
375 | ctx->raw_edid = (struct edid *)fake_edid_info; | |
376 | ||
d7b8478a ID |
377 | /* if raw_edid isn't same as fake data then it can't be tested. */ |
378 | if (ctx->raw_edid != (struct edid *)fake_edid_info) { | |
379 | DRM_DEBUG_KMS("edid data is not fake data.\n"); | |
380 | return -EINVAL; | |
381 | } | |
382 | ||
b73d1230 ID |
383 | DRM_DEBUG_KMS("requested connection.\n"); |
384 | ||
080be03d | 385 | drm_helper_hpd_irq_event(ctx->drm_dev); |
b73d1230 ID |
386 | |
387 | return len; | |
388 | } | |
389 | ||
390 | static DEVICE_ATTR(connection, 0644, vidi_show_connection, | |
391 | vidi_store_connection); | |
392 | ||
393 | int vidi_connection_ioctl(struct drm_device *drm_dev, void *data, | |
394 | struct drm_file *file_priv) | |
395 | { | |
396 | struct vidi_context *ctx = NULL; | |
397 | struct drm_encoder *encoder; | |
080be03d | 398 | struct exynos_drm_display *display; |
b73d1230 ID |
399 | struct drm_exynos_vidi_connection *vidi = data; |
400 | ||
b73d1230 ID |
401 | if (!vidi) { |
402 | DRM_DEBUG_KMS("user data for vidi is null.\n"); | |
403 | return -EINVAL; | |
404 | } | |
405 | ||
b73d1230 ID |
406 | if (vidi->connection > 1) { |
407 | DRM_DEBUG_KMS("connection should be 0 or 1.\n"); | |
408 | return -EINVAL; | |
409 | } | |
410 | ||
411 | list_for_each_entry(encoder, &drm_dev->mode_config.encoder_list, | |
412 | head) { | |
080be03d | 413 | display = exynos_drm_get_display(encoder); |
b73d1230 | 414 | |
080be03d | 415 | if (display->type == EXYNOS_DISPLAY_TYPE_VIDI) { |
2f26bd72 | 416 | ctx = display_to_vidi(display); |
b73d1230 ID |
417 | break; |
418 | } | |
419 | } | |
420 | ||
421 | if (!ctx) { | |
422 | DRM_DEBUG_KMS("not found virtual device type encoder.\n"); | |
423 | return -EINVAL; | |
424 | } | |
425 | ||
426 | if (ctx->connected == vidi->connection) { | |
427 | DRM_DEBUG_KMS("same connection request.\n"); | |
428 | return -EINVAL; | |
429 | } | |
430 | ||
d3b62dbf | 431 | if (vidi->connection) { |
e7808df1 SWK |
432 | struct edid *raw_edid = (struct edid *)(uint32_t)vidi->edid; |
433 | if (!drm_edid_is_valid(raw_edid)) { | |
434 | DRM_DEBUG_KMS("edid data is invalid.\n"); | |
d3b62dbf ID |
435 | return -EINVAL; |
436 | } | |
4ddc773b | 437 | ctx->raw_edid = drm_edid_duplicate(raw_edid); |
d3b62dbf ID |
438 | if (!ctx->raw_edid) { |
439 | DRM_DEBUG_KMS("failed to allocate raw_edid.\n"); | |
440 | return -ENOMEM; | |
441 | } | |
d3b62dbf ID |
442 | } else { |
443 | /* | |
444 | * with connection = 0, free raw_edid | |
445 | * only if raw edid data isn't same as fake data. | |
446 | */ | |
447 | if (ctx->raw_edid && ctx->raw_edid != | |
448 | (struct edid *)fake_edid_info) { | |
449 | kfree(ctx->raw_edid); | |
450 | ctx->raw_edid = NULL; | |
451 | } | |
452 | } | |
b73d1230 ID |
453 | |
454 | ctx->connected = vidi->connection; | |
080be03d | 455 | drm_helper_hpd_irq_event(ctx->drm_dev); |
b73d1230 ID |
456 | |
457 | return 0; | |
458 | } | |
459 | ||
ce6cb556 SP |
460 | static enum drm_connector_status vidi_detect(struct drm_connector *connector, |
461 | bool force) | |
462 | { | |
463 | struct vidi_context *ctx = ctx_from_connector(connector); | |
464 | ||
465 | /* | |
466 | * connection request would come from user side | |
467 | * to do hotplug through specific ioctl. | |
468 | */ | |
469 | return ctx->connected ? connector_status_connected : | |
470 | connector_status_disconnected; | |
471 | } | |
472 | ||
473 | static void vidi_connector_destroy(struct drm_connector *connector) | |
474 | { | |
475 | } | |
476 | ||
477 | static struct drm_connector_funcs vidi_connector_funcs = { | |
478 | .dpms = drm_helper_connector_dpms, | |
479 | .fill_modes = drm_helper_probe_single_connector_modes, | |
480 | .detect = vidi_detect, | |
481 | .destroy = vidi_connector_destroy, | |
482 | }; | |
483 | ||
484 | static int vidi_get_modes(struct drm_connector *connector) | |
485 | { | |
486 | struct vidi_context *ctx = ctx_from_connector(connector); | |
487 | struct edid *edid; | |
488 | int edid_len; | |
489 | ||
490 | /* | |
491 | * the edid data comes from user side and it would be set | |
492 | * to ctx->raw_edid through specific ioctl. | |
493 | */ | |
494 | if (!ctx->raw_edid) { | |
495 | DRM_DEBUG_KMS("raw_edid is null.\n"); | |
496 | return -EFAULT; | |
497 | } | |
498 | ||
499 | edid_len = (1 + ctx->raw_edid->extensions) * EDID_LENGTH; | |
500 | edid = kmemdup(ctx->raw_edid, edid_len, GFP_KERNEL); | |
501 | if (!edid) { | |
502 | DRM_DEBUG_KMS("failed to allocate edid\n"); | |
503 | return -ENOMEM; | |
504 | } | |
505 | ||
506 | drm_mode_connector_update_edid_property(connector, edid); | |
507 | ||
508 | return drm_add_edid_modes(connector, edid); | |
509 | } | |
510 | ||
ce6cb556 SP |
511 | static struct drm_encoder *vidi_best_encoder(struct drm_connector *connector) |
512 | { | |
513 | struct vidi_context *ctx = ctx_from_connector(connector); | |
514 | ||
515 | return ctx->encoder; | |
516 | } | |
517 | ||
518 | static struct drm_connector_helper_funcs vidi_connector_helper_funcs = { | |
519 | .get_modes = vidi_get_modes, | |
ce6cb556 SP |
520 | .best_encoder = vidi_best_encoder, |
521 | }; | |
522 | ||
523 | static int vidi_create_connector(struct exynos_drm_display *display, | |
524 | struct drm_encoder *encoder) | |
525 | { | |
2f26bd72 | 526 | struct vidi_context *ctx = display_to_vidi(display); |
ce6cb556 SP |
527 | struct drm_connector *connector = &ctx->connector; |
528 | int ret; | |
529 | ||
530 | ctx->encoder = encoder; | |
531 | connector->polled = DRM_CONNECTOR_POLL_HPD; | |
532 | ||
533 | ret = drm_connector_init(ctx->drm_dev, connector, | |
534 | &vidi_connector_funcs, DRM_MODE_CONNECTOR_VIRTUAL); | |
535 | if (ret) { | |
536 | DRM_ERROR("Failed to initialize connector with drm\n"); | |
537 | return ret; | |
538 | } | |
539 | ||
540 | drm_connector_helper_add(connector, &vidi_connector_helper_funcs); | |
34ea3d38 | 541 | drm_connector_register(connector); |
ce6cb556 SP |
542 | drm_mode_connector_attach_encoder(connector, encoder); |
543 | ||
544 | return 0; | |
545 | } | |
546 | ||
547 | ||
548 | static struct exynos_drm_display_ops vidi_display_ops = { | |
549 | .create_connector = vidi_create_connector, | |
550 | }; | |
551 | ||
1d50aa9c | 552 | static int vidi_bind(struct device *dev, struct device *master, void *data) |
f37cd5e8 | 553 | { |
f01833cd | 554 | struct vidi_context *ctx = dev_get_drvdata(dev); |
1d50aa9c | 555 | struct drm_device *drm_dev = data; |
f37cd5e8 ID |
556 | struct drm_crtc *crtc = ctx->crtc; |
557 | int ret; | |
558 | ||
f01833cd | 559 | vidi_mgr_initialize(&ctx->manager, drm_dev); |
f37cd5e8 | 560 | |
eb88e422 | 561 | ret = exynos_drm_crtc_create(&ctx->manager, drm_dev, ctx->pipe, |
5d1741ad | 562 | EXYNOS_DISPLAY_TYPE_VIDI); |
f37cd5e8 ID |
563 | if (ret) { |
564 | DRM_ERROR("failed to create crtc.\n"); | |
565 | return ret; | |
566 | } | |
567 | ||
7340426a | 568 | ret = exynos_drm_create_enc_conn(drm_dev, &ctx->display); |
f37cd5e8 ID |
569 | if (ret) { |
570 | crtc->funcs->destroy(crtc); | |
571 | DRM_ERROR("failed to create encoder and connector.\n"); | |
572 | return ret; | |
573 | } | |
574 | ||
575 | return 0; | |
576 | } | |
577 | ||
1d50aa9c ID |
578 | |
579 | static void vidi_unbind(struct device *dev, struct device *master, void *data) | |
580 | { | |
581 | } | |
582 | ||
583 | static const struct component_ops vidi_component_ops = { | |
584 | .bind = vidi_bind, | |
585 | .unbind = vidi_unbind, | |
586 | }; | |
587 | ||
56550d94 | 588 | static int vidi_probe(struct platform_device *pdev) |
b73d1230 | 589 | { |
b73d1230 | 590 | struct vidi_context *ctx; |
b73d1230 ID |
591 | int ret; |
592 | ||
f37cd5e8 | 593 | ctx = devm_kzalloc(&pdev->dev, sizeof(*ctx), GFP_KERNEL); |
b73d1230 ID |
594 | if (!ctx) |
595 | return -ENOMEM; | |
596 | ||
f01833cd | 597 | ctx->manager.ops = &vidi_manager_ops; |
7340426a AH |
598 | ctx->display.type = EXYNOS_DISPLAY_TYPE_VIDI; |
599 | ctx->display.ops = &vidi_display_ops; | |
b73d1230 | 600 | ctx->default_win = 0; |
1d50aa9c ID |
601 | ctx->pdev = pdev; |
602 | ||
603 | ret = exynos_drm_component_add(&pdev->dev, EXYNOS_DEVICE_TYPE_CRTC, | |
5d1741ad | 604 | EXYNOS_DISPLAY_TYPE_VIDI); |
1d50aa9c ID |
605 | if (ret) |
606 | return ret; | |
607 | ||
608 | ret = exynos_drm_component_add(&pdev->dev, EXYNOS_DEVICE_TYPE_CONNECTOR, | |
609 | ctx->display.type); | |
610 | if (ret) | |
611 | goto err_del_crtc_component; | |
b73d1230 ID |
612 | |
613 | INIT_WORK(&ctx->work, vidi_fake_vblank_handler); | |
614 | ||
b73d1230 ID |
615 | mutex_init(&ctx->lock); |
616 | ||
f01833cd | 617 | platform_set_drvdata(pdev, ctx); |
b73d1230 | 618 | |
f37cd5e8 ID |
619 | ret = device_create_file(&pdev->dev, &dev_attr_connection); |
620 | if (ret < 0) { | |
1d50aa9c ID |
621 | DRM_ERROR("failed to create connection sysfs.\n"); |
622 | goto err_del_conn_component; | |
f37cd5e8 | 623 | } |
b73d1230 | 624 | |
1d50aa9c ID |
625 | ret = component_add(&pdev->dev, &vidi_component_ops); |
626 | if (ret) | |
627 | goto err_remove_file; | |
628 | ||
629 | return ret; | |
630 | ||
631 | err_remove_file: | |
632 | device_remove_file(&pdev->dev, &dev_attr_connection); | |
633 | err_del_conn_component: | |
634 | exynos_drm_component_del(&pdev->dev, EXYNOS_DEVICE_TYPE_CONNECTOR); | |
635 | err_del_crtc_component: | |
636 | exynos_drm_component_del(&pdev->dev, EXYNOS_DEVICE_TYPE_CRTC); | |
637 | ||
638 | return ret; | |
b73d1230 ID |
639 | } |
640 | ||
56550d94 | 641 | static int vidi_remove(struct platform_device *pdev) |
b73d1230 | 642 | { |
f01833cd | 643 | struct vidi_context *ctx = platform_get_drvdata(pdev); |
b73d1230 | 644 | |
d3b62dbf ID |
645 | if (ctx->raw_edid != (struct edid *)fake_edid_info) { |
646 | kfree(ctx->raw_edid); | |
647 | ctx->raw_edid = NULL; | |
f37cd5e8 ID |
648 | |
649 | return -EINVAL; | |
d3b62dbf ID |
650 | } |
651 | ||
1d50aa9c ID |
652 | component_del(&pdev->dev, &vidi_component_ops); |
653 | exynos_drm_component_del(&pdev->dev, EXYNOS_DEVICE_TYPE_CONNECTOR); | |
654 | exynos_drm_component_del(&pdev->dev, EXYNOS_DEVICE_TYPE_CRTC); | |
655 | ||
b73d1230 ID |
656 | return 0; |
657 | } | |
658 | ||
b73d1230 ID |
659 | struct platform_driver vidi_driver = { |
660 | .probe = vidi_probe, | |
56550d94 | 661 | .remove = vidi_remove, |
b73d1230 ID |
662 | .driver = { |
663 | .name = "exynos-drm-vidi", | |
664 | .owner = THIS_MODULE, | |
b73d1230 ID |
665 | }, |
666 | }; | |
f37cd5e8 ID |
667 | |
668 | int exynos_drm_probe_vidi(void) | |
669 | { | |
670 | struct platform_device *pdev; | |
671 | int ret; | |
672 | ||
673 | pdev = platform_device_register_simple("exynos-drm-vidi", -1, NULL, 0); | |
674 | if (IS_ERR(pdev)) | |
675 | return PTR_ERR(pdev); | |
676 | ||
677 | ret = platform_driver_register(&vidi_driver); | |
678 | if (ret) { | |
679 | platform_device_unregister(pdev); | |
680 | return ret; | |
681 | } | |
682 | ||
683 | return ret; | |
684 | } | |
685 | ||
f01833cd AH |
686 | static int exynos_drm_remove_vidi_device(struct device *dev, void *data) |
687 | { | |
688 | platform_device_unregister(to_platform_device(dev)); | |
689 | ||
690 | return 0; | |
691 | } | |
692 | ||
f37cd5e8 ID |
693 | void exynos_drm_remove_vidi(void) |
694 | { | |
f01833cd AH |
695 | int ret = driver_for_each_device(&vidi_driver.driver, NULL, NULL, |
696 | exynos_drm_remove_vidi_device); | |
697 | /* silence compiler warning */ | |
698 | (void)ret; | |
f37cd5e8 ID |
699 | |
700 | platform_driver_unregister(&vidi_driver); | |
f37cd5e8 | 701 | } |